The disease resulting from prolonged clotting time due to the lack of plasma thromboplastin component $(PTC)$,which is necessary for the formation of thromboplastin,is:

Persons with blood group $A$ contain:

Which of the following is an agranulocyte?

$A$ patient has type $A$ blood and needs a blood transfusion. Type $A$ blood is not available. Which of the following blood types could be substituted without causing harm to the patient?

Which of the following are the smallest blood cells?

Choose the correct statements regarding human blood:
$I$. The volume of blood in an adult is $5 \; L$.
$II$. It constitutes $30-35 \; \%$ of the total extracellular fluid.
$III$. Glucose concentration in the blood is $50 \; mg / 100 \; mL$.
$IV$. Cholesterol concentration in the blood is less than $200 \; mg / 100 \; mL$.
$V$. Urea level in the blood is $10 \; mg / 100 \; mL$.
The option with correct statements is: